Pulley



Jan. 29, 1929. 1,700,416

R. G. NELSON PULLEY Filed Aug. 12, 1927 2 Sheets-Sheet 1 if a If! H HWHIM i 1 w & El in S l N III I g a e WWH \fMH' 3 I 1 1| ZJ 15 GYM/301i 7M 13% M W Jan. 29, 1929. I

. R. G. NELSON PULLEY Filed Aug. 12, 1927 2 Sheets-Sheet 2 V i l V attozncqa l atented Jan. 29, 1929).

ran a REYNQLD G. NELSON, F CANTQN, 013110, ASSIGNOR TU THE SPUN STEEL CORPORATION,

I I 0F CANTER, OHIO, A CORPORATION OF (DHIO.

FULLEY.

Application filed August 12, 1927. erial No. 212,497.

My invention relates to .improvementsin pulleys having a plurality of side by side annular grooves for use in connection with. power drives such as rope drives, and more particularly drives including a plurality of V belts or the like.

In suclr power drives, itis necessary to have pulleys having different numbers of annular grooves therein for transmitting diflerent'a'mounts of power, and to have pulleys adapted for fitting on different sizes of shafts. Q

These requirements have made necessary the manufacture and carrying in stock of a great number of different pulleys each having a different number of annular grooves therein and/or adapted for use with a dif ferent size'shaft. Y

Accordingly the objects of the present improvements' include the provision of composite articles comprising pulleys each'having a diflferent plurality of'annular grooves, and adapted for use with difi'erent size shafts, and each pulley including any desired plurality of separate pulleys having a single groove therein and adapted for connection with each other, and selectively with one of a number of different size shaft hubs; whereby the number of parts to be-carried in stock in order. to provide pulleys each having a different number of grooves therein and adapted for-use with different size shafts is greatly reduced.

These and ancillary objects are attained by a construction and arrangement which may be stated in general terms as including a plurality of separate pulleys each having a peripheral flange containing an annular groove therein and a connecting disc flange therefor, a hub, and common means securing all of the connecting flanges upon the hub.

Preferred embodiments of my invention are illustrated in the accompanying drawings forming part hereof,-in which Figure 1 is an end elevation of one embodiment of my improved'pulley;

Fig. 2, a longitudinal axial sectional view thereof as on line 22, Fig. 1; Fig. 3, a view similar to Fig. 1 of, a modified'" embodiment of my invention; and

.Fig. 4, a longitudinal axial sectional view thereof as on line 4-4, Fig. 3.

Similar Iiumerals refer to similar parts throughout the" drawings. ,7 The embodiment of my invention illus- .ing to the method set "forth in my prior apseven annular grooves, this number may be trated in Figs. 1 and 2 and indicated generally at 10 comprises a'composite article and includes a plurality of separate pulleys,'11, 12, 13 and 14.

The pulleys 11, 12, 13 and14 include prefe0 erably tubular peripheral flanges 11 12, 13- and 14, respectively, each containing an an- 4 nular groove therein, and having inwardly extending therefrom, connecting disc flanges 11 12", 13 and 14", respectively.

Each disc flange is provided with a plu' rality of apertures 15 registering with like apertures in the other disc flanges and adapte to receive the 'shanks16 of screws 17 whic' are screwed'into suitable threaded apertures 18 preferably provided in an outWardly.ex'-, tending flange 18 of a hub 19 having a shaft bearing 20 therein of any desired diameter for keying upona shaft not shown and of any desired diameter. The hub 19 preferably extends within and fits the inner edges of the disc flanges, as at 19. 4

It is preferred to make each of the .111- leys' 11, 12, 13, and 14 of spun steel acc rdplication for patent, filed September 16, 1926,

. Serial No. 135,852, whereby the walls of each pulley areg'of uniform thickness and whereby a smooth and densified surface'ds' provided for the Wearing faces of the pulley groove. The pulley assembly 10 includes a central pulley 11, on each side of which a pulley 12 is placed, and the disc flanges 12*.of the pulleys 12 abut opposite'faces of the disc flange 11f of the'central pulley 11. On the outside of each. pulley 12, a pulley'13 is placed, and the disc flanges 13 of the pulleys 13 abut againstthe outer faces'of the disc flanges 12 of the pulleys 12; while on.the outside I of each pulley 13 a pulley 14 isplaced, and the disc flanges 14" of the pulleys 14 abut opposite faces of the disc flanges 13 of the pulleys 13. i

W p l The grooves in the peripheral flanges 11,

'12, 13 and 14 of the several pulleys are .1 preferably identical in form, the remaining portions of the peripheral flanges :14 are adapted to fit in the peripheral flanges 13*, which in turn are adapted to fit in the-peripheral flanges 12, which in turn are adapted to fit about the peripheral flange 11", as illustrated.

. The pulley assembly as illustrated includes reduced by eliminating one or more of the 11 illustrated in Figs. 3 and 4 and indicated generally at 110 comprises a composite article and includes a plurality of separate pulleys 111, 112, 113 and 114. 4

The pulleys 111, 112, 113 and 114 include preferably tubular peripheral flanges 111,

112, 113 and 114, respectively, each containing an annular groove therein, and having inwardly extending therefrom, connecting disc flanges 111*, 112*, 113", and 114, respecand of any desired diameter. preferably extends within and fits the inner tively.

.Each disc flange is provided with a plurality of apertures 115 registering with like apertures in the other disc flanges and adapted to receive the shanks 116 of screws 117 which are screwed into suitable threadedapertures 118 preferably provided in an out-' wardly extending flange 118 of a hub 119 havinga sh'aft bearing 120 therein of any de-. sired diameter for securing upon a shaft 121 The hub 119 edges of'the disc flanges, as at 119.

It is preferred to make each of the pulleys I 111, 112, 113 and 114 of spun steel according to the method set forth in myprior application for patent, filed September 16, 1926, Se-

rial No. 135,852, whereby the walls of each pulley are of uniform thickness and whereby a smooth and densified surface is provided for theflwearing faces of the pulley groove.

The pulley assembly 110 includes a pair of central pulleys 111, and the inner faces of the disc flanges 111 abut each other. On the outside of each pulley 111, a pulley 112 is placed, and the inner faces of the disc flanges 112 of the pulleys 112 abut against the outer faces of the disc flanges 111 of the pulleys 111;; while on theoutside of each pulley 112 a pulley 113 is placed, and the inner faces of the disc flanges 113 of the pulleys 113 abut against the outer faces of the disc flanges 112 I of the pulleys 112; and on the outside of one pulley-113 a pulley 114 isplaced, and the in- Irer face of the disc flange 114 of the pulley 1 14, abuts the outer face of the disc flange 113 of the adjacent pulley 113. I

The grooves in the peripheral flanges 111,

112, 113 and 114 of the several pulleys are preferably identical in form, the remaining portions of the peripheral flanges 114 are adapted to fit in' the peripheral flanges113 which in turn are adapted to fit in the peripheral flanges 112?, which in turn are adapted to fit in the peripheral flanges lll as illustrated. The pulley assembly as illustrated includes seven annular grooves, this number may be reduced by eliminating one or more of the separate pulleys, or may be increased by adding a similarly constructed separate pulley, all the separate pulleys being securely connected to the driving hub 119 by'means of the screws 117. V

I claim c 1. A composite article including a pluralityof separate pulleys each having a peripheral flange containing an annular groove therein and a disc flange extending there fromf'a-hub, and common means securing all of the disc flanges upon the hub. 1

2. 'A compositearticle including a plurality of separate pulleys each having a peripheral flange containing an annular groove therein and a disc flange extending therefrom, a hub, the hub extending'within and fitting the inner edges of the disc flanges, an aperture in each disc flange registering with the like apertures in the other disc flanges, and a securing shank passing through all of the registering apertures and secured to the hub for mounting the flanges upon thehub.

3. A composite article including a plural-.

ity of separate pulleys each having a peripheral flange containing an annular groove therein and a disc flange extending therefrom, a hub, a plurality of apertures in each disc flanges registering with like apertures in the other disc flanges and a securing shank passing through each set of registering aper-, tures andsecured to the hub for mounting the J from, a hub, an outwardly extending flange on the hub, and common means securing all of the disc flanges to the outwardly extending peripheral flange containing an annular groove therein, a hub, and means connected with each tubular peripheral flange and with the hub for securing the flanges upon the hub. In testimony that I claim the above, I have hereunto subscribed my name.

REYNOLD G. NELSON. 

